China One of Hottest for Ss304 Elbow - Black Steel Bolts With Nuts – Deye Manufacturer and Supplier

One of Hottest for Ss304 Elbow - Black Steel Bolts With Nuts – Deye

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We will make just about every exertion for being excellent and perfect, and speed up our actions for standing during the rank of worldwide top-grade and high-tech enterprises for Carbon steel elbow , Concentric Centerline Butterfly Valve , Ductile Iron GGG40 Butterfly Valve , Living by quality, development by credit is our eternal pursuit, We firmly believe that after your visit we will become long-term partners.

One of Hottest for Ss304 Elbow - Black Steel Bolts With Nuts – Deye Detail:

Standard: DIN6914-6916 , ASMEB18.2.6 and JISB1186 AS1252.
Different sizes between M12 and M30 are available.
Material: B7/2H, 20MnTiB ,35VB. A3, A1, A2. A4.
Pressure rating: 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9.
surface treatment: black oxide , hot galvanizing ,black, Dacromet and zinc plating.
Hexagonal head types: one is flat-brained and the other is concave-brained.
Depending on the position of the flange bolt, the size requirements of the disc are different. There are also flat bottom and toothed parts.

The quantity of bolts for a flange connection will be given by the number of bolt holes in a flange, diameter and length of bolts is dependent of flange type and Pressure Class of flange.

Stud Bolt length are defined in ASME B16.5 standard. The length in inches is equal to the effective thread length measured parallel to the axis, from the first to the first thread without the chamfers (points). First thread is defined as the intersection of the major diameter of the thread with the base of the point.

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